Ceiling Design
Designs for ceiling panels can be defined in the system. When creating a ceiling panel, the thickness, the height difference between the top edge of the finished floor and the top edge of the unfinished floor, and the layer structure are adopted from the design. Additional information can be assigned to each layer, such as the evaluation of the layer in the ceiling survey or the definition as a core layer. All of these values are saved with the individual ceiling panels. A change to the design is not automatically transferred to the ceiling panels that have already been entered. Changes to designs for ceiling panels that have already been created are made via 'Ceiling Edit - Change Design'.
The finishes are entered in the 'Ceiling -- Manage Ceiling Finishes' dialog box.
Existing settings can be selected using the drop-down list at the top of the dialog box. The disk icon can be used to save the current setting with the same name or a new name. The administration icon can be used to create new settings, including by adopting existing ceiling settings, and to modify or delete existing settings. See "Saving Settings" in the "General Help" manual for more information.
The following values can be set for each version:
Ceiling type with respect to finished space : Ceiling layers automatically intersect with roof surfaces as soon as they come into contact. The intersection can be influenced by the 'False Ceiling' or 'Boundary Ceiling' settings. For more information, see the 'Intersection of Ceiling and Roof Layers' section. If the ceiling type is set to 'No Intersecting,' the ceiling will not intersect with roof surfaces, even if they are penetrated.
Slab thickness : The total slab thickness is displayed here and can be entered. The thickness always corresponds to the sum of the layer thicknesses. Changes in the slab thickness are always applied to layer 0.
OK raw ceiling -- OK finished floor : This value can be used to store the height difference between the raw ceiling and the finished floor.
Layers : The layer thicknesses are entered. If a change is made, the entire ceiling thickness is automatically adjusted. Layer 0 should be the main layer (beam layer) of the ceiling. Due to the viewing direction of the ceiling, from top to bottom, layers -1, -2, etc. are opposite the viewing direction, while layers 1, 2, etc. are in the viewing direction of the ceiling.
Various settings can be made for each layer:
Identification number : Each layer is assigned a layer identification number. This identification number gives the layer a name, which is also displayed in the survey. It also assigns various information to the layer, such as the texture set or data for load assumption in static calculations. A corresponding browser is available for selecting the identification number.
Texture orientation : This value (unit: degrees) determines the orientation of the textures visible in Direct 3D, which can be assigned to the panel bodies of the individual layers (texture set). This can be used, for example, to create representations of floor coverings with tiled surfaces at an angle of 45°. The reference for the angle is the span direction of the main beams defined by the ceiling field, i.e., orientation of the main beams = orientation of the X-axis in the ceiling field = angle 0.00 degrees.
Insulation measurement (I) : Layers defined in this way are evaluated as insulation area and insulation volume in the measurement data of the ceiling areas when a ceiling measurement is stored in the construction data program
Area measurement (F) : Layers defined in this way are evaluated as area and true area in the measurement data of the ceiling areas when a ceiling measurement is stored in the construction data program
Core layers (K) : Each layer can be a core layer or a shell. If walls penetrate individual ceiling layers due to their upper or lower height definition, shells (non-core layers) are automatically separated, and the penetration is taken into account as a deduction area in the measurement. Corresponding layer contours are automatically generated here for entering slabs.
Create Slabs (PL) : If this function is activated in the layer, a slab volume is automatically generated for the corresponding layer. This function is primarily used to visualize slab structures in photorealistic representations of the building, as well as in sections and elevations.
Layer ranges for EnEV: This button opens another dialog box for entering the layer ranges that can occur in a ceiling. This dialog box is described in the chapter "Layer ranges for EnEV."
Intersecting the ceiling and roof layers
The layers of the ceiling and roof surfaces automatically intersect according to the following rules:
We distinguish between visible and invisible roof trusses. A roof truss is invisible if there is a layer with a thickness greater than 0.0 below layer 0 (rafters).
The core layers of the roof always run through and are never limited.
The core layers of the ceiling extend to the layer set in the roof surface design. This setting can be different for boundary ceilings and intermediate ceilings.
Visible roof trusses:
The slab shells extend to the position specified in the roof surface design. This setting can be different for boundary slabs and intermediate slabs.
Invisible roof trusses:
The shells above the core layers of the ceiling end at the lowest shell of the roof.
The lower shells of the ceiling end at the lowest shell of the roof.
The lower shells of the roof end at the core layer of a boundary slab. In a suspended slab, they are interrupted by the core layers of the slab.
For clarification, see the following sketch:
The core layers were colored gray.
Roof design:
MakeCore locationIsolationformworkbrickBuckling positionBorder cover runs until
-5
X
-4
X
-3
-2
X
-1
X
X
X
X
0
X
1
Ceiling design, boundary ceiling:
MakeCore locationIsolation
-3
-2
X
-1
X
0
X
1
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